
        .gradient-text {
            background: linear-gradient(135deg, #FFE45C 0%, #FFF9C4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .glass-effect {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(255, 228, 92, 0.15);
        }
        
        /* 学习社区卡片特殊样式 - 确保投影一致性 */
        .learning-community-card {
            transition: all 0.3s ease !important;
        }
        
        .learning-community-card:hover {
            transform: translateY(-12px) !important;
            box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.3) !important;
        }
        
        .button-primary {
            background: linear-gradient(135deg, #FFE45C 0%, #FFF9C4 100%);
            color: #222;
            transition: all 0.3s ease;
            border: none;
        }
        
        .button-primary:hover {
            background: #FFE45C;
            color: #111;
            box-shadow: 0 10px 20px rgba(255, 228, 92, 0.3);
            transform: translateY(-2px);
        }
        
        .floating-animation {
            animation: floating 3s ease-in-out infinite;
        }
        
        @keyframes floating {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        
        .scroll-smooth {
            scroll-behavior: smooth;
        }
        
        .text-shadow {
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        .text-theme {
            color: #FFE45C;
        }
        .bg-theme {
            background-color: #FFE45C;
        }
        .border-theme {
            border-color: #FFE45C;
        }
        
        /* 开始探索按钮悬浮效果 */
        .explore-button {
            transition: all 0.3s ease;
            position: relative;
        }
        
        .explore-button .fa-arrow-right {
            transition: transform 0.3s ease;
            display: inline-block;
        }
        
        .explore-button:hover {
            transform: translateX(8px);
        }
        
        .explore-button:hover .fa-arrow-right {
            transform: translateX(4px);
            transition: transform 0.3s ease;
        }
        
        /* AI词条英雄区动画效果 */
        .hero-search-input {
            transition: all 0.3s ease;
        }
        
        .hero-search-input:focus {
            transform: scale(1.02);
            box-shadow: 0 20px 40px rgba(255, 228, 92, 0.15);
        }
        
        .hot-item {
            transition: all 0.3s ease;
        }
        
        .hot-item:hover {
            transform: translateX(8px);
            background-color: #f8fafc !important;
        }
        
        .hero-card {
            animation: slideInUp 0.8s ease-out;
        }
        
        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .hero-title {
            animation: fadeInUp 1s ease-out 0.2s both;
        }
        
        .hero-description {
            animation: fadeInUp 1s ease-out 0.4s both;
        }
        
        .hero-search {
            animation: fadeInUp 1s ease-out 0.6s both;
        }
        
        .hero-stats {
            animation: fadeInUp 1s ease-out 0.8s both;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 固定页脚高度 */
        .footer-fixed-height {
            height: 120px;
            min-height: 120px;
        }
        
        /* 流体动画背景 */
        .fluid-animation {
            position: absolute;
            width: 100%;
            height: 100%;
            min-height: 200px;
            overflow: hidden;
            pointer-events: none;
        }
        
        .fluid-blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(1px);
            animation: fluidMove 15s infinite ease-in-out;
            transition: all 0.3s ease;
            will-change: transform;
            z-index: 1;
        }
        
        .blob-1 {
            width: 180px;
            height: 180px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
            animation-duration: 30s;
            background: linear-gradient(135deg, rgba(255, 228, 92, 0.08) 0%, rgba(255, 193, 7, 0.04) 50%, rgba(255, 152, 0, 0.02) 100%);
        }
        
        .blob-2 {
            width: 150px;
            height: 150px;
            top: 50%;
            right: 10%;
            animation-delay: -8s;
            animation-duration: 35s;
            background: linear-gradient(135deg, rgba(255, 235, 59, 0.25) 0%, rgba(255, 193, 7, 0.12) 50%, rgba(255, 152, 0, 0.08) 100%);
        }
        
        .blob-3 {
            width: 200px;
            height: 200px;
            bottom: 10%;
            left: 20%;
            animation-delay: -15s;
            animation-duration: 40s;
            background: linear-gradient(135deg, rgba(255, 193, 7, 0.06) 0%, rgba(255, 152, 0, 0.03) 50%, rgba(255, 111, 0, 0.02) 100%);
        }
        
        .blob-4 {
            width: 120px;
            height: 120px;
            top: 30%;
            left: 60%;
            animation-delay: -22s;
            animation-duration: 32s;
            background: linear-gradient(135deg, rgba(255, 235, 59, 0.2) 0%, rgba(255, 193, 7, 0.1) 50%, rgba(255, 152, 0, 0.05) 100%);
        }
        
        .blob-2 {
            width: 150px;
            height: 150px;
            top: 50%;
            right: 10%;
            animation-delay: -8s;
            animation-duration: 35s;
        }
        
        .blob-3 {
            width: 200px;
            height: 200px;
            bottom: 10%;
            left: 20%;
            animation-delay: -15s;
            animation-duration: 40s;
        }
        
        .blob-4 {
            width: 120px;
            height: 120px;
            top: 30%;
            left: 60%;
            animation-delay: -22s;
            animation-duration: 32s;
        }
        
        @keyframes fluidMove {
            0% {
                transform: translate(0, 0) scale(1);
                opacity: 0.6;
            }
            25% {
                transform: translate(25px, -15px) scale(1.1);
                opacity: 0.8;
            }
            50% {
                transform: translate(15px, 25px) scale(0.9);
                opacity: 0.7;
            }
            75% {
                transform: translate(-20px, 15px) scale(1.05);
                opacity: 0.8;
            }
            100% {
                transform: translate(0, 0) scale(1);
                opacity: 0.6;
            }
        }
        
        /* 左侧球体的特殊透明度 */
        .blob-1, .blob-3 {
            opacity: 0.2 !important;
        }
        
        .fluid-animation:hover .blob-1,
        .fluid-animation:hover .blob-3 {
            opacity: 0.3 !important;
        }
        
        /* 流体动画悬停效果 */
        .fluid-animation:hover .fluid-blob {
            filter: blur(1px);
            transition: all 0.5s ease;
        }
        
        .fluid-animation:hover .blob-1 {
            background: linear-gradient(135deg, rgba(255, 228, 92, 0.15) 0%, rgba(255, 193, 7, 0.08) 50%, rgba(255, 152, 0, 0.05) 100%);
        }
        
        .fluid-animation:hover .blob-2 {
            background: linear-gradient(135deg, rgba(255, 235, 59, 0.4) 0%, rgba(255, 193, 7, 0.25) 50%, rgba(255, 152, 0, 0.15) 100%);
        }
        
        .fluid-animation:hover .blob-3 {
            background: linear-gradient(135deg, rgba(255, 193, 7, 0.12) 0%, rgba(255, 152, 0, 0.08) 50%, rgba(255, 111, 0, 0.05) 100%);
        }
        
        .fluid-animation:hover .blob-4 {
            background: linear-gradient(135deg, rgba(255, 235, 59, 0.35) 0%, rgba(255, 193, 7, 0.2) 50%, rgba(255, 152, 0, 0.12) 100%);
        }
        
        /* 响应式流体动画 */
        @media (max-width: 768px) {
            .fluid-blob {
                opacity: 0.4;
            }
            
            .blob-1 {
                width: 140px;
                height: 140px;
            }
            
            .blob-2 {
                width: 120px;
                height: 120px;
            }
            
            .blob-3 {
                width: 160px;
                height: 160px;
            }
            
            .blob-4 {
                width: 100px;
                height: 100px;
            }
        }
    